Production of sound-records.



No. 836,510. PATENTEDNOV. 20, 1906. 1. KITSEE.

PRODUCTION OF SOUND RECORDS.

APPLICATION FILED AUG. 26. 1904.

2 SHEETS-SHEET 1.

PC w- N Q I //1 I g I g] c0 L E fii i fii i i iv n a LL L EL IVITNESSES: INVENTOR.

PATENTED NOV. 20, 1906.

I. KITSEE.

PRODUCTION OF SOUND RECORDS.

APPLIOATION FILED AUG. 26, 1904.

2 SHEETS-SEEET 2 lSIDOR-KITSEE, OF PHILADELPHIA, PENNSYLVANIA.

PRODUCTION OF SOUN D-FIECORDS.

Specification of Letters Patent.

Patented Nov. 20, 1906.

Application filed A t 26,1904. Serial No. 222.287.

To all whom it may concern;

Be it known that I, ISIDOR Kr rsEE, of the city and county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in the Production of Sound-Records, of which the following is a specification.

My invention relates to an improvement in the production of sound-records.

All sound-records are to-day produced by what is called the cutting-stylus, and the systems now employed differ from each other in that one reproduces the sound-waves by the depth of the cut and the others reproduce these sound-waves by removing an etch-resisting film on a solid plate. In all these cases a resistance is offered to the movements of the stylus, and through this resistance these movements are greatly retarded. The records therefore cannot reproduce the voice in its natural am litude. It is the aim of my invdntion to o viate these difficulties.

The underlying principle of my invention consists therein that an etch-resisting material is deposited on a solid surface in accordance with the vibrations of the diaphragm produced by the generated sound-waves, and as the most simple manner of depositing this etch-resisting material consists therein that the same is dissolved in a fluid I prefer the following method: I first dissolve a shellac, rosin, or other free-dissolving etch-resisting material in a fluid, preferably one which quickly evaporates, and I therefore prefer a solution of shellac in alcohol or rosin in hydrocarbon. I provide a stylus which is supported by the vibrating diaphragm of a recorder with an orifice and allow the etch-re-' sisting fluid to issue from a reservoir in close proximity thereto. Beneath the stylus I then place the solid plate adapted. to receive the record. The etch-resisting fluid should issuefrom the reservoir in a very thin stream, and as the stylus, with its orifice, has to vibrate in accordance with the vibration of the diaphragm proper it is obvious that the liq- 1 The so-prepared record-plate is in reality a negative of the sound-waves generated, and to produce from same a positive it is only necessary to apply to the surface of said plate a plastic material capable of receiving impressions and hardening after such impressions are made.

Where it is desired that the evaporation of the etch-resisting fluid should be accelerated, the solid plate may be through artificial means raised to the required temperature; but in some cases it may be preferred not to use any evaporating fluid, and in such cases I make use of wax heated so as to become fluid, and in this case the reservoir from which this heated wax issues should always be kept at the required tem erature; but the plate on which the wax is eposited may then be cooled by any of the well-known means.

The great advantage of this process consists therein, first, that the stylus is not subjected to the retardation to which it is subj ected in the processes of to-day, and, second, that the original is produced in the negative, making it possible to'produce directly therefrom any desired number of positives.

In order to explain my invention more clearly, I refer to the accompanying drawings, which show preferred forms of apparatus for carrying out my process.

In the drawings, Figure 1 is a plan view of a diaphragm embodying my invention. Fig. 2 is a cross-section of a recording mechanism with my invention attached thereto. Fig. 3 is a plan view of part of a-record. Fig. 4 is a cross-section of a recording mechanism with my device in modified form.

A is the mouthpiece; B, the diaphragm; C, the stylus, attached to the diaphragm. This stylus is partially supported by the movable lever G, attached to the bar h, held in position by the supports H.

So far thedevice may bea duplicate of the usual phonograph; but instead of the stylus being provided with a cutting-point I sub- I q stitute therefor a funnel D and place in juxtaposition to said funnel the reservoir F, containing the etch-resisting fluid F, and I preferably provide this reservoir with the valve F and the compressing means F which compressing means may be purely mechanical'and may consist of either a weight or pneumatic. pressure.

Beneath the orifice of the funnel Dis placed the solid plate E, adapted to be moved in the vent an overflow of the fluid it is obvious the solid plate.

. tallic nozzle D that the end of the stylus itself may be so formed that the funnel can be dis ensed with.

In some cases it is preferred t at the fluid should issue directl from the reservoir onto T 's is more specially desired if the fluid consists of a molten etch-resister-such, for instance, as wax or paraffin for the reason that the intervening air may cool the heated material to a greater extent than is desired before the same is deposited on the solid plate. In such cases it is best to employ means substantially as illustrated in Fig. 4, in which figure a flexible tube D, preferably made of rubber, is connected to the lower portion of the reservo'inF and is proviced at its lower part with a preferably-me- This nozzle extend s through a perforation in the stylus C, which then acts as a guide for the nozzle D When, therefore, the diaphragm, with its a pended stylus C, vibrates, it is obvious that t e nozzle must follow these vibrations and in so doin must deposit the fluid on the solid plate in a waved line in accordance with such vibrations.

Having now described m invention, what I claim as new, and desire o secure by Letters Patent, is

1. The method of producing sound-records, which consists in depositlng an etchresisting material in accordance with the variations in the generated sound-waves on a surface capable of being etched, and then depressing such parts of the surface which are not protected by said material.

2. The method of producing a sound-record which consists in causing a free-flowing fluid to be deposited'on a surface capable of being etched in accordance with the vibration of a diaphragm and afterward depressing such parts of the surface which are not protected by said fluid.

3. The method of reproducing soundwaves in permanent records which consists in causing a free-flowing etch-resisting fluid to be deposited in accordance with the vibration of a diaphragm actuated by said sound waves. v

4. The method of producing sound-records without actual contact of the stylus connected to the diaphragm which consists in causing to. be deflected the flow of a fluid in accordance with the vibration of said stylus and causing the so-deflected fluid to be de posited on a solid surface.

5. The method of reproducing soundwaves in permanent records which consists in causing through said sound-waves adiaphragm to vibrate, causing a free-flowing fluid to be deposited on a solid surface and causing through the vibration of said diaphragm said fluid to be deflected in a manner so as to reproduce said vibrations.

6. The method of reproducin records of sound-waves consisting therein t at the flow of an etch-resisting fluid on a base ada ted to be etched in is caused to be deflected t ough the vibration of a phonographic diaphragm in a manner so that the line formed by said fluid reproduces said vibrations and then etching in such parts of the base as are not protected by the line of fluid.

7 The method of producing sound-records without actual contact of the stylus con nected to the diaphragm, which consists in causing the flow of a fluid to be deflected in accordance with the vibration of said stylus,

causing the so-deflected fluid to be deposited on a solid surface, and then causing those parts of the surface not rotectefl by said fluid to be diflerentiated in height from those parts protected by said fluid.

In testimony whereof I hereby sign my name, in the presence of two subscribing -w1tnesse's, this 24th day of August, A. D. 1904.

ISIDOR KITSEE Witnesses:

EDITH R.'STILLEY, H. O. YETTER. 

